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<div class="title">collisiondetector.cpp</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">  Created by Fabrizio Di Vittorio (fdivitto2013@gmail.com) - &lt;http://www.fabgl.com&gt;</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">  Copyright (c) 2019-2020 Fabrizio Di Vittorio.</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">  All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">  This file is part of FabGL Library.</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">  FabGL is free software: you can redistribute it and/or modify</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">  it under the terms of the GNU General Public License as published by</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">  the Free Software Foundation, either version 3 of the License, or</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">  (at your option) any later version.</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">  FabGL is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">  but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">  GNU General Public License for more details.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment">  You should have received a copy of the GNU General Public License</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">  along with FabGL.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &quot;freertos/FreeRTOS.h&quot;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &quot;freertos/task.h&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="collisiondetector_8h.html">collisiondetector.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="fabutils_8h.html">fabutils.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacefabgl.html">fabgl</a> {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">// QuadTree implementation</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;QuadTree::QuadTree(CollisionDetector * collisionDetector, QuadTree * parent, QuadTreeQuadrant quadrant, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>)</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;{</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;  m_collisionDetector     = collisionDetector;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;  m_parent                = parent;</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;  m_quadrant              = quadrant;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  m_x                     = x;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  m_y                     = y;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  m_width                 = <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;  m_height                = <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  m_objects               = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  m_objectsCount          = 0;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  m_children[TopLeft]     = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;  m_children[TopRight]    = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;  m_children[BottomLeft]  = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;  m_children[BottomRight] = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;}</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="keywordtype">bool</span> QuadTree::isEmpty()</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;{</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;  <span class="keywordflow">return</span> m_objectsCount == 0 &amp;&amp;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;         m_children[TopLeft] == <span class="keyword">nullptr</span> &amp;&amp;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;         m_children[TopRight] == <span class="keyword">nullptr</span> &amp;&amp;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;         m_children[BottomLeft] == <span class="keyword">nullptr</span> &amp;&amp;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;         m_children[BottomRight] == <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;}</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="keywordtype">void</span> QuadTree::detachFromParent()</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;{</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="keywordflow">if</span> (m_parent) {</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    m_parent-&gt;m_children[m_quadrant] = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    m_parent = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  }</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;}</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="keywordtype">void</span> QuadTree::insert(QuadTreeObject * <span class="keywordtype">object</span>)</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;{</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;  QuadTreeQuadrant quadrant = getQuadrant(<span class="keywordtype">object</span>);</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  <span class="keywordflow">if</span> (quadrant != <a class="code" href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">None</a> &amp;&amp; m_children[quadrant]) {</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    m_children[quadrant]-&gt;insert(<span class="keywordtype">object</span>);</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="keywordflow">return</span>;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  }</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  <span class="keywordtype">object</span>-&gt;owner = <span class="keyword">this</span>;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;  <span class="keywordtype">object</span>-&gt;next = m_objects;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  m_objects = object;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  ++m_objectsCount;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  <span class="keywordflow">if</span> (m_objectsCount &lt; QUADTREE_LEVEL_SPLIT_THRESHOLD)</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="keywordflow">return</span>;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;  <span class="comment">// split m_objects inside sub trees (4 quadrants)</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;  QuadTreeObject * obj = m_objects;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;  QuadTreeObject * prev = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;  <span class="keywordflow">while</span> (obj) {</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    QuadTreeObject * next = obj-&gt;next;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    QuadTreeQuadrant quadrant = getQuadrant(obj);</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keywordflow">if</span> (quadrant != <a class="code" href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">None</a>) {</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;      createQuadrant(quadrant);</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;      m_children[quadrant]-&gt;insert(obj);</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;      --m_objectsCount;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;      <span class="keywordflow">if</span> (prev == <span class="keyword">nullptr</span>)</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        m_objects = next;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;      <span class="keywordflow">else</span></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;        prev-&gt;next = next;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;      prev = obj;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    }</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    obj = next;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  }</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="keywordtype">void</span> QuadTree::remove(QuadTreeObject * <span class="keywordtype">object</span>)</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;{</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;  <span class="comment">// rebuild the list removing this object</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;  QuadTreeObject * obj = <span class="keywordtype">object</span>-&gt;owner-&gt;m_objects;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;  QuadTreeObject * prev = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;  <span class="keywordflow">while</span> (obj) {</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="keywordflow">if</span> (obj == <span class="keywordtype">object</span>) {</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;      <span class="keywordflow">if</span> (prev == <span class="keyword">nullptr</span>)</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        <span class="keywordtype">object</span>-&gt;owner-&gt;m_objects = <span class="keywordtype">object</span>-&gt;next;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;      <span class="keywordflow">else</span></div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;        prev-&gt;next = <span class="keywordtype">object</span>-&gt;next;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    }</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    prev = obj;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    obj = obj-&gt;next;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;  }</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;  <span class="keywordtype">object</span>-&gt;owner-&gt;m_objectsCount -= 1;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  <span class="keywordtype">object</span>-&gt;owner = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;  <span class="keywordtype">object</span>-&gt;next  = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;}</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="keywordtype">void</span> QuadTree::createQuadrant(QuadTreeQuadrant quadrant)</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;{</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;  <span class="keywordflow">if</span> (m_children[quadrant] == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <span class="keywordtype">int</span> halfWidth  = m_width &gt;&gt; 1;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="keywordtype">int</span> halfHeight = m_height &gt;&gt; 1;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keywordflow">switch</span> (quadrant) {</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;      <span class="keywordflow">case</span> TopLeft:</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        m_children[TopLeft]     = m_collisionDetector-&gt;initEmptyQuadTree(<span class="keyword">this</span>, TopLeft,     m_x,             m_y,              halfWidth, halfHeight);</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        <span class="keywordflow">break</span>;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;      <span class="keywordflow">case</span> TopRight:</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        m_children[TopRight]    = m_collisionDetector-&gt;initEmptyQuadTree(<span class="keyword">this</span>, TopRight,    m_x + halfWidth, m_y,              halfWidth, halfHeight);</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;        <span class="keywordflow">break</span>;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;      <span class="keywordflow">case</span> BottomLeft:</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;        m_children[BottomLeft]  = m_collisionDetector-&gt;initEmptyQuadTree(<span class="keyword">this</span>, BottomLeft,  m_x,             m_y + halfHeight, halfWidth, halfHeight);</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;        <span class="keywordflow">break</span>;</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;      <span class="keywordflow">case</span> BottomRight:</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;        m_children[BottomRight] = m_collisionDetector-&gt;initEmptyQuadTree(<span class="keyword">this</span>, BottomRight, m_x + halfWidth, m_y + halfHeight, halfWidth, halfHeight);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        <span class="keywordflow">break</span>;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;      <span class="keywordflow">default</span>:</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        <span class="keywordflow">break</span>;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    }</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;  }</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;}</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">// check if object is inside rect</span></div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="keywordtype">bool</span> QuadTree::objectInRect(QuadTreeObject * <span class="keywordtype">object</span>, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>)</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;{</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;  <span class="keywordflow">return</span> (object-&gt;sprite-&gt;x &gt;= x) &amp;&amp;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;         (<span class="keywordtype">object</span>-&gt;sprite-&gt;y &gt;= y) &amp;&amp;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;         (object-&gt;sprite-&gt;x + object-&gt;sprite-&gt;getWidth() &lt;= x + <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>) &amp;&amp;</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;         (object-&gt;sprite-&gt;y + object-&gt;sprite-&gt;getHeight() &lt;= y + <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>);</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;}</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;QuadTreeQuadrant QuadTree::getQuadrant(QuadTreeObject * <span class="keywordtype">object</span>)</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;{</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;  <span class="keywordtype">int</span> hWidth  = m_width &gt;&gt; 1;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;  <span class="keywordtype">int</span> hHeight = m_height &gt;&gt; 1;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <span class="keywordflow">if</span> (objectInRect(<span class="keywordtype">object</span>, m_x,          m_y,           hWidth, hHeight))</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    <span class="keywordflow">return</span> TopLeft;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;  <span class="keywordflow">if</span> (objectInRect(<span class="keywordtype">object</span>, m_x + hWidth, m_y,           hWidth, hHeight))</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    <span class="keywordflow">return</span> TopRight;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;  <span class="keywordflow">if</span> (objectInRect(<span class="keywordtype">object</span>, m_x,          m_y + hHeight, hWidth, hHeight))</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    <span class="keywordflow">return</span> BottomLeft;</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;  <span class="keywordflow">if</span> (objectInRect(<span class="keywordtype">object</span>, m_x + hWidth, m_y + hHeight, hWidth, hHeight))</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;    <span class="keywordflow">return</span> BottomRight;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">None</a>;</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;}</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="keywordtype">void</span> QuadTree::update(QuadTreeObject * <span class="keywordtype">object</span>)</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;{</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;  QuadTree * qtree = <span class="keywordtype">object</span>-&gt;owner;</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    <span class="keywordflow">if</span> (qtree-&gt;m_parent == <span class="keyword">nullptr</span> || objectInRect(<span class="keywordtype">object</span>, qtree-&gt;m_x, qtree-&gt;m_y, qtree-&gt;m_width, qtree-&gt;m_height)) {</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;      <span class="comment">// need to reinsert?</span></div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;      QuadTreeQuadrant quadrant = qtree-&gt;getQuadrant(<span class="keywordtype">object</span>);</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;      <span class="keywordflow">if</span> (qtree == object-&gt;owner &amp;&amp; qtree-&gt;m_children[quadrant] == <span class="keyword">nullptr</span>)</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        <span class="keywordflow">return</span>; <span class="comment">// don&#39;t need to reinsert</span></div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;      <span class="comment">// need to be reinserted, remove from owner...</span></div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;      <span class="keyword">remove</span>(object);</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;      <span class="comment">// ...and reinsert in qtree node</span></div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;      qtree-&gt;insert(<span class="keywordtype">object</span>);</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;      <span class="keywordflow">break</span>;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    }</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    qtree = qtree-&gt;m_parent;</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;  }</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;}</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;<span class="comment">// get the first detected collision</span></div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;<span class="comment">// ret nullptr = no collision detected</span></div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;QuadTreeObject * QuadTree::detectCollision(QuadTreeObject * <span class="keywordtype">object</span>, CollisionDetectionCallback callbackFunc, <span class="keywordtype">void</span> * callbackObj)</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;{</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;  <span class="keywordflow">if</span> (!object-&gt;sprite-&gt;visible)</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;  <span class="comment">// find rectangle level collision with objects of this level</span></div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;  QuadTreeObject * obj = m_objects;</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;  <span class="keywordflow">while</span> (obj) {</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    QuadTreeObject * next = obj-&gt;next;  <span class="comment">// this allows object to be removed if collision is detected</span></div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    <span class="comment">// check intersection and masks collision</span></div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    Point collisionPoint;</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;    <span class="keywordflow">if</span> (<span class="keywordtype">object</span> != obj &amp;&amp; obj-&gt;sprite-&gt;visible &amp;&amp; objectsIntersect(<span class="keywordtype">object</span>, obj) &amp;&amp; checkMaskCollision(<span class="keywordtype">object</span>, obj, &amp;collisionPoint)) {</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;      <span class="comment">// collision!</span></div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;      <span class="keywordflow">if</span> (callbackFunc)</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;        callbackFunc(callbackObj, object-&gt;sprite, obj-&gt;sprite, collisionPoint); <span class="comment">// call function and continue</span></div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;      <span class="keywordflow">else</span></div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;        <span class="keywordflow">return</span> obj; <span class="comment">// return first detected object and stop</span></div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;    }</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    obj = next;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;  }</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;  <span class="comment">// check in children</span></div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;  QuadTreeQuadrant quadrant = getQuadrant(<span class="keywordtype">object</span>);</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;  <span class="keywordflow">if</span> (quadrant != <a class="code" href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">None</a>) {</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    <span class="comment">// look in a specific quadrant</span></div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    <span class="keywordflow">if</span> (m_children[quadrant])</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;      <span class="keywordflow">return</span> m_children[quadrant]-&gt;detectCollision(<span class="keywordtype">object</span>, callbackFunc, callbackObj);</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    <span class="comment">// look in all quadrants</span></div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 4; ++i) {</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;      QuadTreeObject * obj = m_children[i] &amp;&amp; objectIntersectsQuadTree(<span class="keywordtype">object</span>, m_children[i]) ? m_children[i]-&gt;detectCollision(<span class="keywordtype">object</span>, callbackFunc, callbackObj) : <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;      <span class="keywordflow">if</span> (obj &amp;&amp; !callbackFunc)</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        <span class="keywordflow">return</span> obj;</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;    }</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;  }</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;}</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;<span class="keywordtype">bool</span> QuadTree::objectsIntersect(QuadTreeObject * objectA, QuadTreeObject * objectB)</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;{</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;  <span class="keywordflow">return</span> objectA-&gt;sprite-&gt;x + objectA-&gt;sprite-&gt;getWidth()  &gt;= objectB-&gt;sprite-&gt;x &amp;&amp;</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;         objectB-&gt;sprite-&gt;x + objectB-&gt;sprite-&gt;getWidth()  &gt;= objectA-&gt;sprite-&gt;x &amp;&amp;</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;         objectA-&gt;sprite-&gt;y + objectA-&gt;sprite-&gt;getHeight() &gt;= objectB-&gt;sprite-&gt;y &amp;&amp;</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;         objectB-&gt;sprite-&gt;y + objectB-&gt;sprite-&gt;getHeight() &gt;= objectA-&gt;sprite-&gt;y;</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;}</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;<span class="keywordtype">bool</span> QuadTree::objectIntersectsQuadTree(QuadTreeObject * <span class="keywordtype">object</span>, QuadTree * quadTree)</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;{</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;  <span class="keywordflow">return</span> <span class="keywordtype">object</span>-&gt;sprite-&gt;x + <span class="keywordtype">object</span>-&gt;sprite-&gt;getWidth()  &gt;= quadTree-&gt;m_x     &amp;&amp;</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;         quadTree-&gt;m_x     + quadTree-&gt;m_width           &gt;= <span class="keywordtype">object</span>-&gt;sprite-&gt;x &amp;&amp;</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;         <span class="keywordtype">object</span>-&gt;sprite-&gt;y + <span class="keywordtype">object</span>-&gt;sprite-&gt;getHeight() &gt;= quadTree-&gt;m_y     &amp;&amp;</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;         quadTree-&gt;m_y     + quadTree-&gt;m_height          &gt;= <span class="keywordtype">object</span>-&gt;sprite-&gt;y;</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;}</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="keywordtype">bool</span> QuadTree::checkMaskCollision(QuadTreeObject * objectA, QuadTreeObject * objectB, Point * collisionPoint)</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;{</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;  <span class="comment">// intersection rectangle</span></div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;  <span class="keywordtype">int</span> x1 = tmax(objectA-&gt;sprite-&gt;x, objectB-&gt;sprite-&gt;x);</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;  <span class="keywordtype">int</span> y1 = tmax(objectA-&gt;sprite-&gt;y, objectB-&gt;sprite-&gt;y);</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;  <span class="keywordtype">int</span> x2 = tmin(objectA-&gt;sprite-&gt;x + objectA-&gt;sprite-&gt;getWidth() - 1, objectB-&gt;sprite-&gt;x + objectB-&gt;sprite-&gt;getWidth() - 1);</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;  <span class="keywordtype">int</span> y2 = tmin(objectA-&gt;sprite-&gt;y + objectA-&gt;sprite-&gt;getHeight() - 1, objectB-&gt;sprite-&gt;y + objectB-&gt;sprite-&gt;getHeight() - 1);</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;  <span class="comment">// look for matching non trasparent pixels inside the intersection area</span></div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;  Bitmap * bitmapA = objectA-&gt;sprite-&gt;getFrame();</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;  Bitmap * bitmapB = objectB-&gt;sprite-&gt;getFrame();</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;  <span class="keywordflow">if</span> (bitmapA-&gt;format == <a class="code" href="group___enumerations_gafe919d7a7aeba256337f0fc494cf7221.html#ggafe919d7a7aeba256337f0fc494cf7221ab24d28cf12130dc2957866674bc65ff7">PixelFormat::RGBA2222</a> &amp;&amp; bitmapB-&gt;format == <a class="code" href="group___enumerations_gafe919d7a7aeba256337f0fc494cf7221.html#ggafe919d7a7aeba256337f0fc494cf7221ab24d28cf12130dc2957866674bc65ff7">PixelFormat::RGBA2222</a>) {</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="comment">// bitmaps have same pixel format, quick compare</span></div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> y = y1; y &lt;= y2; ++y) {</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;      uint8_t <span class="keyword">const</span> * rowA = bitmapA-&gt;data + bitmapA-&gt;width * (y - objectA-&gt;sprite-&gt;y);</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;      uint8_t <span class="keyword">const</span> * rowB = bitmapB-&gt;data + bitmapB-&gt;width * (y - objectB-&gt;sprite-&gt;y);</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = x1; x &lt;= x2; ++x) {</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;        <span class="keywordtype">int</span> alphaA = rowA[x - objectA-&gt;sprite-&gt;x] &gt;&gt; 6;</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;        <span class="keywordtype">int</span> alphaB = rowB[x - objectB-&gt;sprite-&gt;x] &gt;&gt; 6;</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;        <span class="keywordflow">if</span> (alphaA &amp;&amp; alphaB) {</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;          *collisionPoint = (Point){(int16_t)x, (int16_t)y};</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;          <span class="keywordflow">return</span> <span class="keyword">true</span>;  <span class="comment">// collision</span></div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;        }</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;      }</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;    }</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    <span class="comment">// different pixel formats, slow compare</span></div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> y = y1; y &lt;= y2; ++y) {</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;      <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = x1; x &lt;= x2; ++x) {</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;        <span class="keywordtype">int</span> alphaA = bitmapA-&gt;getAlpha(x - objectA-&gt;sprite-&gt;x, y - objectA-&gt;sprite-&gt;y);</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;        <span class="keywordtype">int</span> alphaB = bitmapB-&gt;getAlpha(x - objectB-&gt;sprite-&gt;x, y - objectB-&gt;sprite-&gt;y);</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;        <span class="keywordflow">if</span> (alphaA &amp;&amp; alphaB) {</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;          *collisionPoint = (Point){(int16_t)x, (int16_t)y};</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;          <span class="keywordflow">return</span> <span class="keyword">true</span>;  <span class="comment">// collision</span></div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;        }</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;      }</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;    }</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;  }</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;}</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;<span class="comment">void QuadTree::dump(int level)</span></div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;<span class="comment">{</span></div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;<span class="comment">  printf(&quot;%*sLevel %d x:%d y:%d w:%d h:%d\n&quot;, level, &quot;&quot;, level, m_x, m_y, m_width, m_height);</span></div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;<span class="comment">  printf(&quot;%*sObjects: &quot;, level, &quot;&quot;);</span></div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;<span class="comment">  QuadTreeObject * obj = m_objects;</span></div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;<span class="comment">  while (obj) {</span></div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;<span class="comment">    printf(&quot;[%p x:%d y:%d w:%d h:%d] &quot;, obj, obj-&gt;sprite-&gt;x, obj-&gt;sprite-&gt;y, obj-&gt;sprite-&gt;getWidth(), obj-&gt;sprite-&gt;getHeight());</span></div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;<span class="comment">    obj = obj-&gt;next;</span></div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;<span class="comment">  }</span></div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;<span class="comment">  printf(&quot;\n&quot;);</span></div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;<span class="comment">  printf(&quot;%*sChildren:\n&quot;, level, &quot;&quot;);</span></div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;<span class="comment">  for (int i = TopLeft; i &lt;= BottomRight; ++i)</span></div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;<span class="comment">    if (m_children[i])</span></div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;<span class="comment">      m_children[i]-&gt;dump(level + 1);</span></div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;<span class="comment">}</span></div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;<span class="comment">// CollisionDetector implementation</span></div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;</div><div class="line"><a name="l00341"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_aadae4076ddcd85581efac286bb8d799c.html#aadae4076ddcd85581efac286bb8d799c">  341</a></span>&#160;<a class="code" href="classfabgl_1_1_collision_detector_aadae4076ddcd85581efac286bb8d799c.html#aadae4076ddcd85581efac286bb8d799c">CollisionDetector::CollisionDetector</a>(<span class="keywordtype">int</span> maxObjectsCount, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>)</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;  : m_quadTreePool(nullptr), m_objectPool(nullptr)</div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;{</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;  m_objectPoolSize = maxObjectsCount;</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;  m_quadTreePoolSize = (5 * maxObjectsCount + 1) / 3;</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;  <span class="keywordflow">if</span> (maxObjectsCount &gt; 0) {</div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    <span class="comment">// preallocate and initialize quad trees</span></div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;    m_quadTreePool = (QuadTree*) malloc(<span class="keyword">sizeof</span>(QuadTree) * m_quadTreePoolSize);</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;    <span class="comment">// initialize root quadtree</span></div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    m_quadTreePool[0] = QuadTree(<span class="keyword">this</span>, <span class="keyword">nullptr</span>, <a class="code" href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">None</a>, 0, 0, <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>, <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>);</div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;    m_rootQuadTree = m_quadTreePool;</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;    <span class="comment">// initialize other quadtrees</span></div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt; m_quadTreePoolSize; ++i)</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;      m_quadTreePool[i] = QuadTree(<span class="keyword">this</span>, <span class="keyword">nullptr</span>, <a class="code" href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">None</a>, 0, 0, 0, 0);</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    <span class="comment">// preallocate and initialize objects</span></div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;    m_objectPool = (QuadTreeObject*) malloc(<span class="keyword">sizeof</span>(QuadTreeObject) * m_objectPoolSize);</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; m_objectPoolSize; ++i)</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;      m_objectPool[i] = QuadTreeObject(<span class="keyword">nullptr</span>, <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;  }</div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;}</div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;</div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;</div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;CollisionDetector::~CollisionDetector()</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;{</div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;  free(m_quadTreePool);</div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;  free(m_objectPool);</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;}</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;</div><div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;QuadTree * CollisionDetector::initEmptyQuadTree(QuadTree * parent, QuadTreeQuadrant quadrant, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>, <span class="keywordtype">int</span> <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>)</div><div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;{</div><div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;  <span class="comment">// look for a unused quadtree inside the pool</span></div><div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i &lt; m_quadTreePoolSize; ++i) {</div><div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;    <span class="keywordflow">if</span> (m_quadTreePool[i].isEmpty()) {</div><div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;      m_quadTreePool[i].detachFromParent();</div><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;      m_quadTreePool[i] = QuadTree(<span class="keyword">this</span>, parent, quadrant, x, y, <a class="code" href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a>, <a class="code" href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a>);</div><div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;      <span class="keywordflow">return</span> &amp;m_quadTreePool[i];</div><div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;    }</div><div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;  }</div><div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;  assert(<span class="keyword">false</span> &amp;&amp; <span class="stringliteral">&quot;No enough quadtrees&quot;</span>);  <span class="comment">// should never happen</span></div><div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;}</div><div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;</div><div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;</div><div class="line"><a name="l00390"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_a48b03f63e22824a043e5df322ecebd3c.html#a48b03f63e22824a043e5df322ecebd3c">  390</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_collision_detector_a48b03f63e22824a043e5df322ecebd3c.html#a48b03f63e22824a043e5df322ecebd3c">CollisionDetector::addSprite</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite)</div><div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;{</div><div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;  <span class="comment">// look for unused object inside the pool</span></div><div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; m_objectPoolSize; ++i)</div><div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;    <span class="keywordflow">if</span> (m_objectPool[i].sprite == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;      QuadTreeObject * obj = &amp;m_objectPool[i];</div><div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;      obj-&gt;sprite = sprite;</div><div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;      sprite-&gt;collisionDetectorObject = obj;</div><div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;      m_rootQuadTree-&gt;insert(obj);</div><div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;      <span class="keywordflow">return</span>;</div><div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    }</div><div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;  assert(<span class="keyword">false</span> &amp;&amp; <span class="stringliteral">&quot;No enough objects&quot;</span>); <span class="comment">// should never happen</span></div><div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;}</div><div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;</div><div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;</div><div class="line"><a name="l00405"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_aefc081299e5e20cd9b6d900de8559248.html#aefc081299e5e20cd9b6d900de8559248">  405</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_collision_detector_aefc081299e5e20cd9b6d900de8559248.html#aefc081299e5e20cd9b6d900de8559248">CollisionDetector::removeSprite</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite)</div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;{</div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;  QuadTree::remove(sprite-&gt;collisionDetectorObject);</div><div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;  sprite-&gt;collisionDetectorObject-&gt;sprite = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;}</div><div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;</div><div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;</div><div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;<span class="comment">void CollisionDetector::dump()</span></div><div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="comment">{</span></div><div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;<span class="comment">  m_rootQuadTree-&gt;dump();</span></div><div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;<span class="comment">}</span></div><div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;</div><div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;</div><div class="line"><a name="l00420"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd.html#af49934327173c9c132ad03a49cbe88dd">  420</a></span>&#160;<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * <a class="code" href="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd.html#af49934327173c9c132ad03a49cbe88dd">CollisionDetector::detectCollision</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite, <span class="keywordtype">bool</span> removeCollidingSprites)</div><div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;{</div><div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;  QuadTreeObject * obj = m_rootQuadTree-&gt;detectCollision(sprite-&gt;collisionDetectorObject);</div><div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;  <span class="keywordflow">if</span> (obj) {</div><div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;    <a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * cSprite = obj-&gt;sprite;</div><div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;    <a class="code" href="classfabgl_1_1_collision_detector_aefc081299e5e20cd9b6d900de8559248.html#aefc081299e5e20cd9b6d900de8559248">removeSprite</a>(sprite);</div><div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;    <a class="code" href="classfabgl_1_1_collision_detector_aefc081299e5e20cd9b6d900de8559248.html#aefc081299e5e20cd9b6d900de8559248">removeSprite</a>(cSprite);</div><div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;    <span class="keywordflow">return</span> cSprite;</div><div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;  } <span class="keywordflow">else</span></div><div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;}</div><div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;</div><div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;</div><div class="line"><a name="l00433"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_a9a5ba3dccacba4da74daf832bca16dbc.html#a9a5ba3dccacba4da74daf832bca16dbc">  433</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd.html#af49934327173c9c132ad03a49cbe88dd">CollisionDetector::detectCollision</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite, CollisionDetectionCallback callbackFunc, <span class="keywordtype">void</span> * callbackObj)</div><div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;{</div><div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;  m_rootQuadTree-&gt;detectCollision(sprite-&gt;collisionDetectorObject, callbackFunc, callbackObj);</div><div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;}</div><div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;</div><div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;</div><div class="line"><a name="l00439"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_ad5da37881b02299b991afee3cd96bf57.html#ad5da37881b02299b991afee3cd96bf57">  439</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_collision_detector_ad5da37881b02299b991afee3cd96bf57.html#ad5da37881b02299b991afee3cd96bf57">CollisionDetector::update</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite)</div><div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;{</div><div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;  m_rootQuadTree-&gt;update(sprite-&gt;collisionDetectorObject);</div><div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;}</div><div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;</div><div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;</div><div class="line"><a name="l00445"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_ae98903a2c36b115ac076b56fa3a64416.html#ae98903a2c36b115ac076b56fa3a64416">  445</a></span>&#160;<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * <a class="code" href="classfabgl_1_1_collision_detector_ae98903a2c36b115ac076b56fa3a64416.html#ae98903a2c36b115ac076b56fa3a64416">CollisionDetector::updateAndDetectCollision</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite, <span class="keywordtype">bool</span> removeCollidingSprites)</div><div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;{</div><div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;  <a class="code" href="classfabgl_1_1_collision_detector_ad5da37881b02299b991afee3cd96bf57.html#ad5da37881b02299b991afee3cd96bf57">update</a>(sprite);</div><div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd.html#af49934327173c9c132ad03a49cbe88dd">detectCollision</a>(sprite, removeCollidingSprites);</div><div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;}</div><div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;</div><div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;</div><div class="line"><a name="l00452"></a><span class="lineno"><a class="line" href="classfabgl_1_1_collision_detector_af7b33b616a340e85f56563d6bf38b895.html#af7b33b616a340e85f56563d6bf38b895">  452</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classfabgl_1_1_collision_detector_ae98903a2c36b115ac076b56fa3a64416.html#ae98903a2c36b115ac076b56fa3a64416">CollisionDetector::updateAndDetectCollision</a>(<a class="code" href="structfabgl_1_1_sprite.html">Sprite</a> * sprite, CollisionDetectionCallback callbackFunc, <span class="keywordtype">void</span> * callbackObj)</div><div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;{</div><div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;  <a class="code" href="classfabgl_1_1_collision_detector_ad5da37881b02299b991afee3cd96bf57.html#ad5da37881b02299b991afee3cd96bf57">update</a>(sprite);</div><div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;  <a class="code" href="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd.html#af49934327173c9c132ad03a49cbe88dd">detectCollision</a>(sprite, callbackFunc, callbackObj);</div><div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;}</div><div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;</div><div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;</div><div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;</div><div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;</div><div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;} <span class="comment">// end of namespace</span></div><div class="ttc" id="collisiondetector_8h_html"><div class="ttname"><a href="collisiondetector_8h.html">collisiondetector.h</a></div><div class="ttdoc">This file contains fabgl::CollisionDetector class definition. </div></div>
<div class="ttc" id="structfabgl_1_1_sprite_html"><div class="ttname"><a href="structfabgl_1_1_sprite.html">fabgl::Sprite</a></div><div class="ttdoc">Represents a sprite. </div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00542">displaycontroller.h:542</a></div></div>
<div class="ttc" id="classfabgl_1_1_collision_detector_a48b03f63e22824a043e5df322ecebd3c_html_a48b03f63e22824a043e5df322ecebd3c"><div class="ttname"><a href="classfabgl_1_1_collision_detector_a48b03f63e22824a043e5df322ecebd3c.html#a48b03f63e22824a043e5df322ecebd3c">fabgl::CollisionDetector::addSprite</a></div><div class="ttdeci">void addSprite(Sprite *sprite)</div><div class="ttdoc">Adds the specified sprite to collision detector. </div><div class="ttdef"><b>Definition:</b> <a href="collisiondetector_8cpp_source.html#l00390">collisiondetector.cpp:390</a></div></div>
<div class="ttc" id="classfabgl_1_1_collision_detector_aadae4076ddcd85581efac286bb8d799c_html_aadae4076ddcd85581efac286bb8d799c"><div class="ttname"><a href="classfabgl_1_1_collision_detector_aadae4076ddcd85581efac286bb8d799c.html#aadae4076ddcd85581efac286bb8d799c">fabgl::CollisionDetector::CollisionDetector</a></div><div class="ttdeci">CollisionDetector(int maxObjectsCount, int width, int height)</div><div class="ttdoc">Creates an instance of CollisionDetector. </div><div class="ttdef"><b>Definition:</b> <a href="collisiondetector_8cpp_source.html#l00341">collisiondetector.cpp:341</a></div></div>
<div class="ttc" id="classfabgl_1_1_collision_detector_aefc081299e5e20cd9b6d900de8559248_html_aefc081299e5e20cd9b6d900de8559248"><div class="ttname"><a href="classfabgl_1_1_collision_detector_aefc081299e5e20cd9b6d900de8559248.html#aefc081299e5e20cd9b6d900de8559248">fabgl::CollisionDetector::removeSprite</a></div><div class="ttdeci">void removeSprite(Sprite *sprite)</div><div class="ttdoc">Removes the specified sprite from collision detector. </div><div class="ttdef"><b>Definition:</b> <a href="collisiondetector_8cpp_source.html#l00405">collisiondetector.cpp:405</a></div></div>
<div class="ttc" id="fabutils_8h_html"><div class="ttname"><a href="fabutils_8h.html">fabutils.h</a></div><div class="ttdoc">This file contains some utility classes and functions. </div></div>
<div class="ttc" id="namespacefabgl_html"><div class="ttname"><a href="namespacefabgl.html">fabgl</a></div><div class="ttdef"><b>Definition:</b> <a href="canvas_8cpp_source.html#l00031">canvas.cpp:31</a></div></div>
<div class="ttc" id="group___enumerations_gafe919d7a7aeba256337f0fc494cf7221_html_ggafe919d7a7aeba256337f0fc494cf7221ab24d28cf12130dc2957866674bc65ff7"><div class="ttname"><a href="group___enumerations_gafe919d7a7aeba256337f0fc494cf7221.html#ggafe919d7a7aeba256337f0fc494cf7221ab24d28cf12130dc2957866674bc65ff7">fabgl::PixelFormat::RGBA2222</a></div></div>
<div class="ttc" id="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd_html_af49934327173c9c132ad03a49cbe88dd"><div class="ttname"><a href="classfabgl_1_1_collision_detector_af49934327173c9c132ad03a49cbe88dd.html#af49934327173c9c132ad03a49cbe88dd">fabgl::CollisionDetector::detectCollision</a></div><div class="ttdeci">Sprite * detectCollision(Sprite *sprite, bool removeCollidingSprites=true)</div><div class="ttdoc">Detects first collision with the specified sprite. </div><div class="ttdef"><b>Definition:</b> <a href="collisiondetector_8cpp_source.html#l00420">collisiondetector.cpp:420</a></div></div>
<div class="ttc" id="classfabgl_1_1_collision_detector_ae98903a2c36b115ac076b56fa3a64416_html_ae98903a2c36b115ac076b56fa3a64416"><div class="ttname"><a href="classfabgl_1_1_collision_detector_ae98903a2c36b115ac076b56fa3a64416.html#ae98903a2c36b115ac076b56fa3a64416">fabgl::CollisionDetector::updateAndDetectCollision</a></div><div class="ttdeci">Sprite * updateAndDetectCollision(Sprite *sprite, bool removeCollidingSprites=true)</div><div class="ttdoc">Updates collision detector and detect collision with the specified sprite. </div><div class="ttdef"><b>Definition:</b> <a href="collisiondetector_8cpp_source.html#l00445">collisiondetector.cpp:445</a></div></div>
<div class="ttc" id="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e_html_gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754"><div class="ttname"><a href="group___enumerations_ga8ac9813c9c9df8a1e7f6ec66b346f08e.html#gga8ac9813c9c9df8a1e7f6ec66b346f08ea6adf97f83acf6453d4a6a4b1070f3754">fabgl::LineEnds::None</a></div></div>
<div class="ttc" id="classfabgl_1_1_collision_detector_ad5da37881b02299b991afee3cd96bf57_html_ad5da37881b02299b991afee3cd96bf57"><div class="ttname"><a href="classfabgl_1_1_collision_detector_ad5da37881b02299b991afee3cd96bf57.html#ad5da37881b02299b991afee3cd96bf57">fabgl::CollisionDetector::update</a></div><div class="ttdeci">void update(Sprite *sprite)</div><div class="ttdoc">Updates collision detector. </div><div class="ttdef"><b>Definition:</b> <a href="collisiondetector_8cpp_source.html#l00439">collisiondetector.cpp:439</a></div></div>
<div class="ttc" id="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594_html_adcf201a8aabf55cb352ec05331242594"><div class="ttname"><a href="displaycontroller_8h_adcf201a8aabf55cb352ec05331242594.html#adcf201a8aabf55cb352ec05331242594">height</a></div><div class="ttdeci">uint8_t height</div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00319">displaycontroller.h:319</a></div></div>
<div class="ttc" id="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476_html_a09a2a45f731b02946ff6d3cd15c1a476"><div class="ttname"><a href="displaycontroller_8h_a09a2a45f731b02946ff6d3cd15c1a476.html#a09a2a45f731b02946ff6d3cd15c1a476">width</a></div><div class="ttdeci">uint8_t width</div><div class="ttdef"><b>Definition:</b> <a href="displaycontroller_8h_source.html#l00318">displaycontroller.h:318</a></div></div>
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    <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><b>collisiondetector.cpp</b></li>
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